CN102225808A - Checkgate apparatus and control method of accurately distributing inflow water for sewage treatment - Google Patents
Checkgate apparatus and control method of accurately distributing inflow water for sewage treatment Download PDFInfo
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- CN102225808A CN102225808A CN2011100886752A CN201110088675A CN102225808A CN 102225808 A CN102225808 A CN 102225808A CN 2011100886752 A CN2011100886752 A CN 2011100886752A CN 201110088675 A CN201110088675 A CN 201110088675A CN 102225808 A CN102225808 A CN 102225808A
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Abstract
The invention relates to a checkgate apparatus and a control method of accurately distributing inflow water for sewage treatment. The apparatus is characterized in that: the apparatus comprises a checkgate assembly, a driving and transmission device, ultrasonic wave liquid indicators, a checkgate guide rail and a checkgate main board; the checkgate main body is provided with apertures and seal plates; and the driving and transmission device comprises a support which is arranged above the guide rail and comprises stand columns and a crossbeam, a controllable motor, a transmission connecting rod, and a controller which has a signal connection with the liquid indicators and a control connection with a power device. The control method comprises the following steps: 1, setting a time interval of water inflow detection and adjustment; 2, detecting reasonable water inflows of each biological processing unit; 3, determining three cases of inflow water passing through the checkgate; and 4, comparing reasonable water inflows of each biological processing unit obtained in step 1 with real water inflows of current weir crest obtained in step 2 through calculating, and processing. The apparatus which is suitable for sewage treatment has the advantages of simple technology, energy saving, low cost, high automaticity, high water discharge efficiency and good quality.
Description
Technical field
The present invention relates to a kind of weir gate device of control and adjusting of the water yield, specifically is the sewage disposal unit that is used for sewage work, is the control set for adjusting of the biological processing unit properly distributed amount of inlet water of difference in functionality in the biological reaction tank.
Background technology
A lot of at home sewage works all adopt the main technique method of traditional activated sludge process as sewage disposal mostly.Traditional activated sludge process comprises technologies such as AAO, oxidation ditch.Adopt sewage work's general function of all having considered biological carbon and phosphorous removal at the beginning of design of these technologies.But in actual moving process, all exist a lot of problems to cause the function of biological carbon and phosphorous removal not produce a desired effect.Here there are following problems: 1, can not promptly and accurately distribute water inlet to anaerobism and anoxic section, thus the carbon source in can not the rational and efficient use water inlet, the denitrogenation dephosphorizing processing efficiency is low; 2, the biochemical section of some sewage works is provided with the water inlet water dispensing apparatus of duct type flashboard or common flashboard, can't the accurate measurement water distribution quantity and the problem of accurate flow adjustment but all exist.Based on above case study, need improve the segmental influent water distribution system of existing sewage disposal, make the water inlet allocation proportion of biological processing unit and flow obtain accurately and timely controlling.
Summary of the invention
The objective of the invention is to solve the problems of the technologies described above, provide a kind of sewage disposal accurately to distribute influent weir door gear and control method, this weir gate device and control method can guarantee that the amount of inlet water of sewage disposal biological processing unit obtains rationally distributing timely, make the operation of sewage treatment process stability and high efficiency ground.
The objective of the invention is to be realized by following technical proposals: sewage disposal of the present invention accurately distributes the influent weir door gear, be provided with weir gate assembly, driving and transmission mechanism, ultrasonic level gage, it is characterized in that: described weir gate assembly is provided with weir gate guide rail, weir gate mainboard, weir gate mainboard dual-side can slide up and down to be connected on the guide rail, the weir gate mainboard is provided with the aperture, this place, aperture is provided with the sealing plate of easy disassembly, is provided with sealed strip around the sealing plate; The weir gate guide rail is vertically fixed on the inboard of the water inlet crest of weir of biological processing unit, the water inlet crest of weir of biological processing unit promptly is the crest of weir of irrigation channel, so the guide rail of weir gate and the position of weir gate mainboard are in the outside of irrigation channel crest of weir, be lower than at the bottom of the canal of irrigation channel at the bottom of unitary pond is entered at biological place, the bottom of described guide rail and weir gate mainboard is stretched into below the irrigation channel bottom; Described driving and transmission mechanism comprise: be installed in the power wheel and the kinematic link that are in transmission connection between support, controllable motor and motor that the top of guide rail is made of column and crossbeam and the weir gate mainboard, this kinematic link is vertically fixed on weir gate mainboard upper end, and power wheel is connected with the spindle of motor; On the weir gate frame, install two and be respectively applied for the ultrasonic level gage of measuring channel median water level height and biological reaction tank median water level height, and be provided with calculating by weir gate the accurate water yield and control the controller of weir gate course of action and stroke, this controller carries out signal with described ultrasonic level gage and is connected, and carries out control linkage with the power set of described weir gate.
The control method of accurate distribution influent weir door gear of the present invention:
1) being set the timed interval that flooding quantity detects and regulate is 1～10 minute, flow allow difference be reasonable flooding velocity 5～10% in;
2) utilize the apparatus and method of the distributing water-inlet carbon source of sewage treatment plant of Chinese invention patent ZL 200810102661.X to measure the rational flooding quantity of each biological processing unit at interval by setting-up time;
3) described controller obtains the altitude signal of channel median water level height and biological reaction tank median water level by described ultrasonic level gage, and judging when into water is by weir gate is any in following three kinds of situations: first kind of situation is that current pass through the aperture free discharge on the crest of weir mainboard; Second kind of situation is that current flow out by the aperture of flooding, and do not produce again simultaneously from the overflow of weir plate top; The third situation is the overcurrent requirement that current can not be satisfied in the aperture, and the part current pass through from the overflow of weir plate upside; Then, difference is calculated 3 kinds of different situations, calculates the accurate flow of current instantly, and the flooding velocity Calculation Method is as follows:
Situation one: when current only passed through by crest of weir, at this moment the weir gate mainboard was the rise state, at this moment, and discharge Q
1Method of calculation are as follows: Q
1
In the formula: the b-weir gate is wide, unit: m;
H
1-crest of weir elevation of water surface, unit: m;
The m-orifice coefficient is 0.62;
G-universal gravity constant, unit: m/s^2;
Situation two: when current are the total flooding orifice outflow, when not producing overflow again simultaneously, at this moment, discharge Q
2Method of calculation are as follows:
In the formula: the orifice coefficient of μ-aperture submerge discharging flow, the orifice coefficient m when getting with free discharge is identical, i.e. μ=0.62; The A-orifice area, unit: m
2
H
2-the water surface is to the degree of depth at center, aperture, unit: m;
G-universal gravity constant, unit: m/s^2;
Situation three: when current can not satisfy the requirement of water yield overcurrent by orifice outflow, the part current pass through from the weir plate below; At this moment, orifice outflow adopts formula 1-2 to calculate, and goes out streamflow Q on the weir
3Calculate and adopt formula 1-1:
Wherein each symbol content and unit are with formula 1-1 and 1-2;
4) will be from the 1st) the rational flooding quantity of each biological processing unit and the 2nd that obtains) the actual flooding velocity of the crest of weir at that time that calculates of step compares, when differing, two numerical value setting outside the permissible value scope, when needing raising or reducing flooding quantity promptly to need to adjust the weir gate mainboard, enter the 4th) step; When flooding quantity is satisfied the demand,, when not needing to adjust flooding quantity and promptly adjusting weir gate mainboard height, enter the 1st promptly below 10%) step;
5) when needs reduce flooding quantity, the weir gate mainboard that then raises promptly calculates the altitude measurement of weir gate mainboard, promptly by above-mentioned steps 1) in particular case one of in 3 kinds of situations determining, utilize the formula of the calculating flooding velocity of this kind situation, calculate H
1Or H
2, and then draw the altitude measurement of weir gate mainboard; According to the altitude measurement of weir gate mainboard, controller control weir gate electric device is regulated the weir gate mainboard to corresponding height; Enter the 2nd then) step:
When weir gate device of the present invention and control method operation, be in closed state between weir gate mainboard and the canal for water distribution, weir gate can move up and down the regulating weir plate height on the weir plate guide rail.During less than reasonable flooding quantity,, just can improve flooding velocity at water distribution quantity by reducing the weir gate mainboard; When the water yield during,, just can reduce flooding velocity by promoting the weir gate mainboard greater than reasonable flooding quantity.Device by this water distribution mode of the present invention can guarantee that water level keeps highly consistent substantially in the channel, can accurately calculate simultaneously the water distribution quantity instantly of each weir gate, and can accurately regulate what of water distribution quantity by the regulating weir plate height, with unitary each biological processing unit of assurance sewage disposal the most rational flooding quantity is arranged, thereby be in best biochemical state and obtain the optimum handling effect.It is perfect that the present invention has structure, simple and practical, and cost is low, flexible operation, and the level of automation height has good regulating effect.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an A-A view among Fig. 1.
The profile of product of the present invention is not subjected to the restriction of this figure, and only the profile change also belongs to protection scope of the present invention.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples:
Embodiment one: sewage disposal accurately distributes the influent weir door gear, be provided with weir gate assembly, driving and transmission mechanism, ultrasonic level gage, it is characterized in that: described weir gate assembly is provided with weir gate guide rail 1, weir gate mainboard 2, weir gate mainboard dual-side can slide up and down to be connected on the guide rail, the weir gate mainboard is provided with aperture 3, this place, aperture is provided with the sealing plate 31 of easy disassembly, is provided with sealed strip around the sealing plate; The weir gate guide rail is vertically fixed on the inboard of the water inlet crest of weir of biological processing unit 32, the water inlet crest of weir of biological processing unit promptly is the crest of weir of irrigation channel, so the guide rail of weir gate and the position of weir gate mainboard are in the outside of irrigation channel crest of weir, biological place advances at the bottom of the canal that is lower than irrigation channel at the bottom of the unitary pond 33, and the bottom of described guide rail and weir gate mainboard is stretched into below the irrigation channel bottom; Described driving and transmission mechanism comprise: the power wheel and the kinematic link 6 that are in transmission connection between support, controllable motor 5 and motor that the top that is installed in guide rail is made of column 7,41 and crossbeam 42 and the weir gate mainboard, this kinematic link is vertically fixed on weir gate mainboard upper end, and power wheel is connected with the spindle of motor; On the weir gate frame, install two and be respectively applied for the ultrasonic level gage 8,9 of measuring channel median water level height and biological reaction tank median water level height, and be provided with calculating by weir gate the accurate water yield and control the controller of weir gate course of action and stroke, this controller carries out signal with described ultrasonic level gage and is connected, and carries out control linkage with the power set of described weir gate.
The wide b=1300mm of weir gate, height is 1000mm, port size 2 * 250 * 400mm, orifice distance weir crest 0.2m; Sewage work moved at night, and flooding quantity is less, and the inflow-rate of water turbine of water distribution weir gate is also less.
1) being set the timed interval that flooding quantity detects and regulate is 10 minutes, and it is 10% of reasonable flooding velocity that flow allows difference;
2) arts demand determines that the weir gate water distribution quantity is 600m after measured
3/ h;
3) the weir gate water inlet is situation one after measured, calculates H through formula 1-1
1Be 0.3m;
4) water level elevation is 6.7m on the ultrasonic level gage mensuration weir, and the biological reaction tank water level elevation is 5.9m, and calculating the weir crest elevation is 7.0m; Regulate weir gate to the 7.0m elevation by the weir gate electric device; Start the 2nd then) step; Redeterminating water level on the weir, still is 6.7m, therefore, is defined as orifice outflow, and the water yield satisfies preset requirement.
Embodiment two:
The wide b=1300mm of weir gate, height is 1000mm, port size 2 * 250 * 400mm, orifice distance weir crest 0.2m; Sewage work is in more stable running status, and the water yield is moderate, and the water distribution weir gate has only the aperture submerge discharging flow;
1) being set the timed interval that flooding quantity detects and regulate is 10 minutes, and it is 10% of reasonable flooding velocity that flow allows difference;
2) arts demand determines that the weir gate water distribution quantity is 1250m after measured
3/ h;
3) the weir gate water inlet is situation two after measured, calculates H through formula 1-2
2Be 0.4m;
4) elevation of water surface is 6.7m on the ultrasonic level gage mensuration weir, and the biological reaction tank elevation of water surface is 5.9m, and calculating the weir crest elevation is 6.7m; Regulate weir gate to the 6.7m elevation by the weir gate electric device; Start the 2nd then) step; Redeterminating water level on the weir, still is 6.7m, therefore, is defined as flooding orifice outflow, and the water yield satisfies preset requirement.
Example three:
The wide b=1300mm of weir gate, height is 1000mm, port size 2 * 250 * 400mm, orifice distance weir crest 0.2m.Sewage work moves by day, and the water yield is bigger, and the inflow-rate of water turbine of water distribution weir gate is also bigger;
1) being set the timed interval that flooding quantity detects and regulate is 10 minutes, and it is 10% of reasonable flooding velocity that flow allows difference;
2) arts demand determines that the weir gate water distribution quantity is 3100m after measured
3/ h;
3) the weir gate water inlet is situation three after measured, calculates H through formula 1-3
1Weir head is 0.3m, H
2Be 0.7m;
4) elevation of water surface is 6.7m on the ultrasonic level gage mensuration weir, and the biological reaction tank elevation of water surface is 5.9m, and calculating the weir crest elevation is 6.4m; Regulate weir gate to the 6.4m elevation by the weir gate electric device; Start the 2nd then) step;
Redeterminating water level on the weir, still is 6.7m, therefore, is defined as flooding the combination of overflow on orifice outflow and the weir, and the water yield satisfies preset requirement.
The present invention is through on probation, can accurately regulate unitary amount of inlet water such as anaerobic pond, anoxic pond, Aerobic Pond, after the water yield is regulated, the distributed water flow of each processing unit processing requirement 6% in, given full play to the function of whole biological processing unit, the water outlet total nitrogen drops to 13mg/L by 18mg/L, and water outlet TP drops to 0.3mg/L by 0.8mg/L, water outlet nitrogen phosphorus is brought up to one-level A by one-level B, has improved the biological treatment effect of sewage work.
Should be pointed out that for those skilled in the art under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a sewage disposal accurately distributes the influent weir door gear, be provided with weir gate assembly, driving and transmission mechanism, ultrasonic level gage, it is characterized in that: described weir gate assembly is provided with weir gate guide rail (1), weir gate mainboard (2), weir gate mainboard dual-side can slide up and down to be connected on the guide rail, the weir gate mainboard is provided with aperture (3), this place, aperture is provided with the sealing plate (31) of easy disassembly, is provided with sealed strip around the sealing plate; The weir gate guide rail is vertically fixed on the inboard of the water inlet crest of weir of biological processing unit (32), the water inlet crest of weir of biological processing unit promptly is the crest of weir of irrigation channel, so the guide rail of weir gate and the position of weir gate mainboard are in the outside of irrigation channel crest of weir, (33) at the bottom of the canal that is lower than irrigation channel at the bottom of the unitary pond are entered at biological place, and the bottom of described guide rail and weir gate mainboard is stretched into below the irrigation channel bottom; Described driving and transmission mechanism comprise: be installed in the power wheel and the kinematic link (6) that are in transmission connection between support, controllable motor (5) and the motor and the weir gate mainboard of top by column (7,41) and crossbeam (42) formation of guide rail, this kinematic link is vertically fixed on weir gate mainboard upper end, and power wheel is connected with the spindle of motor; On the weir gate frame, install two and be respectively applied for the ultrasonic level gage (8,9) of measuring channel median water level height and biological reaction tank median water level height, and be provided with calculating by weir gate the accurate water yield and control the controller of weir gate course of action and stroke, this controller carries out signal with described ultrasonic level gage and is connected, and carries out control linkage with the power set of described weir gate.
2. the control method of accurate distribution influent weir door gear of the present invention:
1) being set the timed interval that flooding quantity detects and regulate is 1～10 minute, flow allow difference be reasonable flooding velocity 5～10% in;
2) utilize the device and method of the distributing water-inlet carbon source of sewage treatment plant of Chinese invention patent ZL 200810102661.X, measure the rational flooding quantity of each biological processing unit at interval by setting-up time;
3) described controller obtains the altitude signal of channel median water level height and biological reaction tank median water level by described ultrasonic level gage, and judging when into water is by weir gate is any in following three kinds of situations: first kind of situation is that current pass through the aperture free discharge on the crest of weir mainboard; Second kind of situation is that current flow out by the aperture of flooding, and do not produce again simultaneously from the overflow of weir plate top; The third situation is the overcurrent requirement that current can not be satisfied in the aperture, and the part current pass through from the overflow of weir plate upside; Then, difference is calculated 3 kinds of different situations, calculates the accurate flow of current instantly, and the flooding velocity Calculation Method is as follows:
Situation one: when current only passed through by crest of weir, at this moment the weir gate mainboard was the rise state, at this moment, and discharge Q
1Calculate
Method is as follows: Q
1
In the formula: the b-weir gate is wide, unit: m;
H
1-crest of weir elevation of water surface, unit: m;
The m-orifice coefficient is 0.62;
G-universal gravity constant, unit: m/s^2;
Situation two: when current are the total flooding orifice outflow, when not producing overflow again simultaneously, at this moment, discharge Q
2Method of calculation are as follows:
In the formula: the orifice coefficient of μ-aperture submerge discharging flow, the orifice coefficient m when getting with free discharge is identical, i.e. μ=0.62;
The A-orifice area, unit: m
2
H
2-the water surface is to the degree of depth at center, aperture, unit: m;
G-universal gravity constant, unit: m/s^2;
Situation three: when current can not satisfy the requirement of water yield overcurrent by orifice outflow, the part current pass through from the weir plate below;
At this moment, orifice outflow adopts formula 1-2 to calculate, and goes out streamflow Q on the weir
3Calculate and adopt formula 1-1:
Wherein each symbol content and unit are with formula 1-1 and 1-2;
4) will be from the 1st) the rational flooding quantity of each biological processing unit and the 2nd that obtains) the actual flooding velocity of the crest of weir at that time that calculates of step compares, when differing, two numerical value setting outside the permissible value scope, when needing raising or reducing flooding quantity promptly to need to adjust the weir gate mainboard, enter the 4th) step; When flooding quantity is satisfied the demand,, when not needing to adjust flooding quantity and promptly adjusting weir gate mainboard height, enter the 1st promptly below 10%) step;
5) when needs reduce flooding quantity, the weir gate mainboard that then raises promptly calculates the altitude measurement of weir gate mainboard, promptly by above-mentioned steps 1) in particular case one of in 3 kinds of situations determining, utilize the formula of the calculating flooding velocity of this kind situation, calculate H
1Or H
2, and then draw the altitude measurement of weir gate mainboard; According to the altitude measurement of weir gate mainboard, controller control weir gate electric device is regulated the weir gate mainboard to corresponding height; Enter the 2nd then) step.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110088675 CN102225808B (en) | 2011-04-11 | 2011-04-11 | Checkgate apparatus and control method of accurately distributing inflow water for sewage treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110088675 CN102225808B (en) | 2011-04-11 | 2011-04-11 | Checkgate apparatus and control method of accurately distributing inflow water for sewage treatment |
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| CN102225808B CN102225808B (en) | 2013-04-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897908A (en) * | 2012-10-10 | 2013-01-30 | 北京工业大学 | Method for controlling liquid level of aeration tank to be constant by surface aeration oxidation ditch process |
| CN103030209A (en) * | 2012-12-12 | 2013-04-10 | 北京城市排水集团有限责任公司 | Effluent-adjustable weir device with nitrogen and phosphorus removal sewage treatment aeration tank and control method thereof |
| CN105525596A (en) * | 2015-12-30 | 2016-04-27 | 长江勘测规划设计研究有限责任公司 | Automatic adjustment type multistage measuring weir |
| CN109537537A (en) * | 2018-11-30 | 2019-03-29 | 河北海王水工机械有限公司 | A kind of measurement water method and device thereof |
| CN113050704A (en) * | 2021-02-25 | 2021-06-29 | 中建三局绿色产业投资有限公司 | Control system for gravity flow water inlet flow of full-underground sewage treatment plant |
| CN114016588A (en) * | 2021-12-20 | 2022-02-08 | 北京城市排水集团有限责任公司 | Cut-off control device and system |
| CN116903139A (en) * | 2023-08-24 | 2023-10-20 | 宇星环保工程有限公司 | Multistage water inlet multistage AO system suitable for sewage treatment plant reconstruction and control method |
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| CN101921019A (en) * | 2010-03-26 | 2010-12-22 | 北京城市排水集团有限责任公司 | Sewage treatment plant inflow weir-adjustable control device and process |
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| CN201737721U (en) * | 2010-07-27 | 2011-02-09 | 北京城市排水集团有限责任公司 | Water inflow distributing and adjusting device for sewage treatment |
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| CN101254981A (en) * | 2008-03-25 | 2008-09-03 | 北京城市排水集团有限责任公司 | Device and method for distributing water-inlet carbon source of sewage treatment plant |
| CN101921019A (en) * | 2010-03-26 | 2010-12-22 | 北京城市排水集团有限责任公司 | Sewage treatment plant inflow weir-adjustable control device and process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897908A (en) * | 2012-10-10 | 2013-01-30 | 北京工业大学 | Method for controlling liquid level of aeration tank to be constant by surface aeration oxidation ditch process |
| CN103030209A (en) * | 2012-12-12 | 2013-04-10 | 北京城市排水集团有限责任公司 | Effluent-adjustable weir device with nitrogen and phosphorus removal sewage treatment aeration tank and control method thereof |
| CN105525596A (en) * | 2015-12-30 | 2016-04-27 | 长江勘测规划设计研究有限责任公司 | Automatic adjustment type multistage measuring weir |
| CN109537537A (en) * | 2018-11-30 | 2019-03-29 | 河北海王水工机械有限公司 | A kind of measurement water method and device thereof |
| CN113050704A (en) * | 2021-02-25 | 2021-06-29 | 中建三局绿色产业投资有限公司 | Control system for gravity flow water inlet flow of full-underground sewage treatment plant |
| CN114016588A (en) * | 2021-12-20 | 2022-02-08 | 北京城市排水集团有限责任公司 | Cut-off control device and system |
| CN116903139A (en) * | 2023-08-24 | 2023-10-20 | 宇星环保工程有限公司 | Multistage water inlet multistage AO system suitable for sewage treatment plant reconstruction and control method |
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